Development of a seat-adjustable power wheelchair

Lee, Wei-chen; Yao, Jyun-An; Chen, Kuo

doi:10.1109/icsse.2011.5961953

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…The wheelchair used in reference [ 18 ] can change the angle of the backrest by manually adjusting the rotation axis at the backrest. The wheelchair designed in references [ 19 , 20 ] uses buttons to control the electric push rod on the wheelchair to achieve angle adjustment functions for the backrest, seat cushion, and other parts of the wheelchair, while reference [ 21 ] used touch-screen control. Based on the above literature, most existing wheelchair posture adjustment methods can only adjust the backrest, seat cushion, and pedals of the wheelchair separately, making it difficult to achieve collaborative control of multiple parts of the wheelchair.…”

Section: Introductionmentioning

confidence: 99%

Research on Intelligent Wheelchair Attitude-Based Adjustment Method Based on Action Intention Recognition

Cui,

Huang,

et al. 2023

Micromachines

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At present, research on intelligent wheelchairs mostly focuses on motion control, while research on attitude-based adjustment is relatively insufficient. The existing methods for adjusting wheelchair posture generally lack collaborative control and good human–machine collaboration. This article proposes an intelligent wheelchair posture-adjustment method based on action intention recognition by studying the relationship between the force changes on the contact surface between the human body and the wheelchair and the action intention. This method is applied to a multi-part adjustable electric wheelchair, which is equipped with multiple force sensors to collect pressure information from various parts of the passenger’s body. The upper level of the system converts the pressure data into the form of a pressure distribution map, extracts the shape features using the VIT deep learning model, identifies and classifies them, and ultimately identifies the action intentions of the passengers. Based on different action intentions, the electric actuator is controlled to adjust the wheelchair posture. After testing, this method can effectively collect the body pressure data of passengers, with an accuracy of over 95% for the three common intentions of lying down, sitting up, and standing up. The wheelchair can adjust its posture based on the recognition results. By adjusting the wheelchair posture through this method, users do not need to wear additional equipment and are less affected by the external environment. The target function can be achieved with simple learning, which has good human–machine collaboration and can solve the problem of some people having difficulty adjusting the wheelchair posture independently during wheelchair use.

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Section: Introductionmentioning

confidence: 99%

Research on Intelligent Wheelchair Attitude-Based Adjustment Method Based on Action Intention Recognition

Cui,

Huang,

et al. 2023

Micromachines

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“…This system allows individuals with disabilities to engage in throwing sports while seated in their wheelchair. National Taiwan University of Science and Technology, Taiwan, created a seatadjustable power wheelchair in 2011, consisting of upper and lower segments linked by a linear module incorporating a ball screw, two linear guides, and a DC servo motor [6]. This design enhances the wheelchair's tilting angle.…”

Section: Introductionmentioning

confidence: 99%

Design of Indoor-Outdoor mobility wheelchair for low resourced settings

2023

jjmie

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This article describes the design of indoor-outdoor mobility wheelchair for Indian settings. The design of such a wheelchair has not been available for the low resourced settings. This work developed a prototype wheelchair with features to provide variable elevation of seat (elevation of 300 mm: seat height from floor -500 mm to 850 mm), 360 degree rotations of seat and ease of seat transfer to make the wheelchair relevant for accessibility in indoor settings. The device is powered by a battery (24 V 18 Ah LifePo4) and electric motor (350 watt with driving speed up to 20 km/hour) thereby making it suitable for indoor use rather than conventional fossil fuel powered vehicles. Its additional feature of having visibility from other vehicles, front light, and ability of driving on different terrains make it suitable for outdoor use. The mobility wheelchair is affordable (manufacturing cost for prototype was around 325 US $) in India. We have further provided justification for all the technical specifications of the components we used. The wheelchair was fabricated locally in our workshop.

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“…As a result, it will reduce injury [21]. Of course, some previous studies attempted to develop a multifunction wheelchair which integrated one or more functions including standing, lying and other control modes [22,23,24,25,26,27].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Design of a Wheelchair with Multi-Posture Characteristics

Wang¹,

Yu²

2017

Proceedings of the 2017 2nd International Conference on Electrical, Automation and Mechanical Engineering (EAME 2017)

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Abstract-At present, an electrical wheelchair cannot meet the needs of patients, like paralyzed patients, who spend most of their time on beds. This paper presents a mechanical design of a wheelchair which can transform to a sitting, lying and standing posture. The standing posture can help patients to reach high place and do exercise. The patients can have rest on it when the wheelchair is lying. In addition, we modeled and simulated the mechanical structure to ensure the reasonableness of the design. Vector equation analytical method is used to conduct kinematic analysis to obtain accurate kinematic properties of structural parts throughout the posture change.

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Development of a seat-adjustable power wheelchair

Cited by 7 publications

References 3 publications

Research on Intelligent Wheelchair Attitude-Based Adjustment Method Based on Action Intention Recognition

Research on Intelligent Wheelchair Attitude-Based Adjustment Method Based on Action Intention Recognition

Design of Indoor-Outdoor mobility wheelchair for low resourced settings

Mechanical Design of a Wheelchair with Multi-Posture Characteristics

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